States inside states have often not the proper spacing on top. See
@startuml
state a {
b --> c
}
state d {
e --> f
}
state g {
h --> i
}
state j {
k -> l
}
state m {
n --> o
}
[*] --> e
f --> h
[*] -left-> k
l -left-> n
note "only state b has\nproper distance on top" as N
@enduml
and output
